Module that creates a subset of a vector based on a filtered vector.
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The filter uses the <i>ECQL</i> or <i>CQL</i> language, please refer to the <a href="http://udig.refractions.net/confluence/display/EN/Common+Query+Language"> uDig user manual </a> or the <a href="http://docs.codehaus.org/display/GEOTDOC/03+ECQL+Examples#03ECQLExamples-Expression"> GeoTools documentation </a> for more informations about the syntax and usability of the language. 
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<h3>Inputs</h3>
<ul>      
<li>the vector to filter</li>
<li>the <i>ECQL</i> filter function</li>
</ul>
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<h3>Output</h3>
<ul>      
<li>the filtered vector</li> 
</ul>